Tom,
I would recommend the Martin Logan Depth which is made to work in conjunction with ES speakers like your Quads. Very fast and musical sub that has three eight inch woofers. I have also used and liked B & W ASW 750 and ASW 675 which were good with two channel music.
Regards,
JWALKER
I would recommend the Martin Logan Depth which is made to work in conjunction with ES speakers like your Quads. Very fast and musical sub that has three eight inch woofers. I have also used and liked B & W ASW 750 and ASW 675 which were good with two channel music.
Regards,
JWALKER